Home / 28,269.78-39,009.40-16,336.96

Finding the Fourth Proportional to 28,269.78, 39,009.40 and 16,336.96

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Solution

The fourth proportional to 28,269.78, 39,009.40 and 16,336.96 is: 22,543.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,269.78 : 39,009.40 = 16,336.96 : x
  2. Step 2: Convert to fraction form
    28,269.78/39,009.40 = 16,336.96/x
  3. Step 3: Cross multiply
    28,269.78x = 39,009.40 × 16,336.96
  4. Step 4: Simplify right side
    28,269.78x = 637,295,007.42
  5. Step 5: Solve for x
    x = 637,295,007.42/28,269.78
  6. Step 6: Final answer
    x = 22,543.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.